浅谈webpack编译vue项目生成的代码探索

本文介绍了webpack编译vue项目生成的代码探索，分享给大家，具体如下：

前言

往 main.js 里写入最简单的 vue 项目结构如下

import Vue from 'vue';
import App from './App.vue';
new Vue({
  el: '#app',
  template: '<App/>',
  components: {
    App
  }
})

App.vue 如下

<template>
  <div id="app">
    <h1>{{ msg }}</h1>
    <h2>Essential Links</h2>
    <ul>
      <li>
        <a href="https://vuejs.org" rel="external nofollow" target="_blank">Core Docs</a>
      </li>
      <li>
        <a href="https://forum.vuejs.org" rel="external nofollow" target="_blank">Forum</a>
      </li>
      <li>
        <a href="https://chat.vuejs.org" rel="external nofollow" target="_blank">Community Chat</a>
      </li>
      <li>
        <a href="https://twitter.com/vuejs" rel="external nofollow" target="_blank">Twitter</a>
      </li>
    </ul>
    <h2>Ecosystem</h2>
    <ul>
      <li>
        <a href="http://router.vuejs.org/" rel="external nofollow" target="_blank">vue-router</a>
      </li>
      <li>
        <a href="http://vuex.vuejs.org/" rel="external nofollow" target="_blank">vuex</a>
      </li>
      <li>
        <a href="http://vue-loader.vuejs.org/" rel="external nofollow" target="_blank">vue-loader</a>
      </li>
      <li>
        <a href="https://github.com/vuejs/awesome-vue" rel="external nofollow" target="_blank">awesome-vue</a>
      </li>
    </ul>
  </div>
</template>
<script>
export default {
  name: 'app',
  data() {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  }
}
</script>
<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
h1,
h2 {
  font-weight: normal;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style> 

编译生成后得到一个316kb的文件，而在316Kb中包含着什么，我很好奇想探索一番。

npm run build
> learning-in-vue@1.0.0 build /Users/everlose/workspace/github/learningInVue
> cross-env NODE_ENV=production webpack --progress --hide-modules								 
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